exoclock

KELT-19Ab

Discovered by: Siverd et al. 2018

The Star
Simbad
GAIA
2MASS		 BD+07 1721
DR2 3142847477107193344
J07260228+0736569
RA 07:26:02.2900 DEC +07:36:56.814
Parallax
3.302 mas		 P.M. RA
-2.85 mas/y		 P.M. DEC
-1.371 mas/y
MagV
9.86		 MagR*
9.733		 MagI*
9.503		 MagJ
9.343		 MagH
9.237		 MagK
9.196
MagG
9.863		 MagGBP
10.004		 MagGRP
9.599
*Calculated from GAIA magnitudes.

Ephemeris - Not verified False
Siverd et al. 2018
Mid-time
2457281.24954 ± 0.00036 BJDTDB
Period
4.6117093 ± 8.8e-06 days
Transit Parameters
Siverd et al. 2018
Rp/Rs
0.10713 ± 0.00092		 a/Rs
7.5 +0.2 -0.18
 i
85.41 +0.34 -0.31 deg
e
-		 ω
- deg
DepthR*
13.52 mmag		 Duration*
4.4 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted to produce a duration that matches the observations.

Limb Darkening Parameters
Siverd et al. 2018
Teff
7500.0 +110.0 -110.0 K
 Log(g)
4.13 +0.03 -0.03 cm/s2
 Fe/H
-0.12 +0.51 -0.51 dex
ExoClock Status
Observing Priority
ExoClock Observations (Recent)
Space Observations
Literature Mid-times
ETD Observations
O-C minutes 		ALERT
8 (8)

1

19.4±0.6

KELT-19Ab


ExoClock Observations

Observation
Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
2022-02-08 Yves Jongen
Rasteau Observatory		 Plane Wave CDK 17"
FLI Kepler CMOS 4040 / R / 135.0		 24.5 ± 2.2
2022-02-08 Jacques Michelet
Claix		 GSO Ritchey-Chrétien
QSI-632 / R / 60.0		 20.5 ± 1.7
2022-02-08 Robert Roth
TURMX Observatory		 Planewave CDK17
QHY600M / r' / 120.0		 20.1 ± 1.9
2022-02-08 Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		 Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 60.0		 20.1 ± 2.3
2022-02-08 Claudio Lopresti
Claudio Lopresti		 Meade LX200 12"
CCD Sbig ST9xe / R / 60.0		 19.8 ± 3.0
2022-02-08 Anaël Wünsche
Observatoire des Baronnies Provençales		 CDK Planewave 2
ZWO ASI6200 / R / 120.0		 19.1 ± 1.2
2022-02-08 Raphael Nicollerat
Observatoire des Valentines K17		 Ritchey Chretien
Moravian C3-26000 PRO / Lum / 45.0		 14.3 ± 2.3
2022-01-02 Robert Roth
TURMX Observatory		 CFF Telescopes 160mm APO
ZWO ASI6200MM Pro / r' / 60.0		 18.2 ± 1.4


Literature Mid-times

Observation
Date		 Mid-time Time format Reference O-C
minutes
2016-12-06 2457728.584553 ± 0.001 BJD_TDB Siverd et al. 2018 -0.5 ± 1.4
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